Green chilli is a popular ingredient in many cuisines around the world. It is used to add a spicy kick to dishes and is known for its bright green color and unique flavor. In addition to almost zero calories, green chillies, esp if hot, can fasten your metabolism by 50% for upto 3 hours. In addition, they can be great for improving cardiovascular health, clearing sinuses, eye health and yes, boosting one's mood. Try some and you might not enter an argument :).